No small problem was the distribution of Dolby 3-D glasses by the thousands, with repeated pleas that they eventually be returned, though many were left broken on the floor.

这期间出现了问题：配发出去的几千副杜比3D眼镜，有些督促回收，但也有不少损坏丢弃的。

youdao

Emphasizes the problem of representation, exploring the issue of how 3-D objects should be encoded so as to efficiently recognize them from 2-D images.

着重于物体的呈现方式，检视3度空间物体如何有效率地对应边编码成可供辨识的2度空间影像。

youdao

Once in 2-d and the rest 3-d... I am running out of people to go with, but have no problem going alone.

看了一次2 - D，其它都是3 - D。能陪我一起去看的人越来越少了，但自己去看也无所谓。

youdao

d1 2 3 And we can do that just going along, 3 d 1, 2 3, and the problem comes when we get to chromium here, which is instead of what we would expect, 4s23d4 we might expect to see 4 s 2, 3 d 4.

我们能做的就是继续，问题出现了,当我们来到铬元素时，它不是我们预期的那样，我们可能预期。

麻省理工公开课 - 化学原理课程节选

I don't care how you do it on exams or on problem sets, but you do need to be aware that the 3 d once filled is lower in energy than the 4 s, and the reason you need to be aware of that is if you're asked for the electron configuration now of the titanium ion.

我不关心你们在考试或者,问题集中如何做它，但是你们的确需要知道3d一旦被填充,它的能量是小于4s的，你们需要知道这个的原因,是如果你现在被要求,写出钛离子的电子构型。

麻省理工公开课 - 化学原理课程节选